Sarri is much less inconsistent than EDF, y, exiting mickey cups doesnt change that for me.
di Francesco might have a higher ceiling as you pointed out with the fantastic CL run Roma did, but, as we saw in his 1.7 seasons in charge of Roma, he's absolutely incapable of managing a crisis.
I personally have a feeling that in a few years suggestion EDF>Sarri is gonna look real funny, but lets see first.